On Friday, the Russian top diplomat affirmed that the Antalya meeting will be a step before the major meeting of presidents in Sochi.

"As for the foreign ministers’ meeting of this troika - Russia, Turkey and Iran - its task is to prepare for the summit (in Sochi on November 22), and it will be held late this week," Lavrov said.

The Presidents of the three guarantor states will also meet on Wednesday in Russian port city of Sochi.

During the last week, Iranian Deputy Foreign Minister for Arab-African Affairs Hossein Jaberi Ansari visited Russian, Syrian, and Turkish capital cities to coordinate the process of talks in Antalya and Sochi. He met the diplomats of top officials of the three countries in his three-stop tour of countries involved in Astana Peace Process talks on Syria.